/* 深算科技聚合支付 — 企业可信 / 金融科技风 */
@import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700&display=swap");

:root {
  --ink: #0b1220;
  --ink-2: #1e293b;
  --mute: #64748b;
  --line: rgba(15, 23, 42, 0.09);
  --bg: #f5f7fb;
  --surface: #ffffff;
  --brand: #1d4ed8;
  --brand-2: #1e40af;
  --brand-soft: rgba(29, 78, 216, 0.1);
  --ok: #0f766e;
  --warn: #b45309;
  --max: 1120px;
  --header: 70px;
  --r: 14px;
  --shadow: 0 20px 48px rgba(15, 23, 42, 0.08);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Plus Jakarta Sans", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
#page-wrapper { min-height: 100vh; display: flex; flex-direction: column; }

/* Header */
.ss-header {
  position: sticky; top: 0; z-index: 50; height: var(--header);
  display: flex; align-items: center;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.ss-header__inner {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  display: flex; align-items: center; gap: 1rem;
}
.ss-brand {
  display: inline-flex; align-items: center; gap: .7rem;
  margin-right: auto; min-width: 0;
}
.ss-brand__mark {
  width: 38px; height: 38px; border-radius: 10px;
  object-fit: cover; flex-shrink: 0;
  box-shadow: 0 6px 16px rgba(29,78,216,.22);
}
.ss-brand__text { display: flex; flex-direction: column; line-height: 1.15; min-width: 0; }
.ss-brand__name {
  font-size: .95rem; font-weight: 750; letter-spacing: .01em;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ss-brand__sub {
  font-size: .7rem; color: var(--mute); font-weight: 600;
  letter-spacing: .06em; text-transform: uppercase;
}
.ss-nav { display: flex; list-style: none; margin: 0; padding: 0; gap: .1rem; }
.ss-nav a {
  padding: .45rem .8rem; border-radius: 8px; color: var(--ink-2);
  font-size: .9rem; font-weight: 550;
}
.ss-nav a:hover { background: var(--brand-soft); color: var(--brand); }
.ss-actions { display: flex; gap: .55rem; }
.ss-btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 2.4rem; padding: .55rem 1.1rem; border-radius: 10px;
  font-weight: 650; font-size: .9rem; border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .2s ease, background .15s ease;
}
.ss-btn:hover { transform: translateY(-1px); }
.ss-btn--ghost { background: #fff; border-color: var(--line); color: var(--ink); }
.ss-btn--ghost:hover { border-color: rgba(29,78,216,.35); }
.ss-btn--primary {
  background: linear-gradient(180deg, #2563eb, #1d4ed8);
  color: #fff; box-shadow: 0 10px 22px rgba(29,78,216,.28);
}
.ss-btn--lg { min-height: 2.95rem; padding: .7rem 1.35rem; font-size: .96rem; }
.ss-menu-toggle {
  display: none; width: 2.4rem; height: 2.4rem; border-radius: 10px;
  border: 1px solid var(--line); background: #fff; cursor: pointer;
  align-items: center; justify-content: center;
}
.ss-menu-toggle span,
.ss-menu-toggle span::before,
.ss-menu-toggle span::after {
  display: block; width: 1.05rem; height: 2px; background: var(--ink); position: relative;
}
.ss-menu-toggle span::before, .ss-menu-toggle span::after { content: ""; position: absolute; left: 0; }
.ss-menu-toggle span::before { top: -5px; }
.ss-menu-toggle span::after { top: 5px; }

/* Hero */
.ss-hero {
  position: relative; overflow: hidden;
  padding: 4.75rem 0 4.25rem;
  background:
    radial-gradient(800px 380px at 100% -10%, rgba(37,99,235,.12), transparent 55%),
    linear-gradient(180deg, #fff 0%, var(--bg) 100%);
}
.ss-hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(15,23,42,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,23,42,.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, #000, transparent 88%);
}
.ss-hero__inner {
  position: relative; z-index: 1;
  width: min(100% - 2rem, var(--max)); margin: 0 auto;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 2.75rem; align-items: center;
}
.ss-kicker {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .32rem .7rem; border-radius: 999px;
  background: var(--brand-soft); color: var(--brand-2);
  font-size: .78rem; font-weight: 700; margin-bottom: 1rem;
}
.ss-hero__brand {
  margin: 0 0 .9rem;
  font-size: clamp(2rem, 4.4vw, 3.1rem);
  font-weight: 800; letter-spacing: -.03em; line-height: 1.15;
}
.ss-hero__lead {
  margin: 0 0 1.5rem; max-width: 34rem; color: var(--mute); font-size: 1.05rem;
}
.ss-hero__cta { display: flex; flex-wrap: wrap; gap: .7rem; margin-bottom: 1.5rem; }
.ss-trustbar {
  display: flex; flex-wrap: wrap; gap: .55rem;
}
.ss-chip {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .4rem .7rem; border-radius: 999px;
  background: #fff; border: 1px solid var(--line);
  color: var(--ink-2); font-size: .8rem; font-weight: 600;
}
.ss-chip::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--ok);
}

/* Console mock */
.ss-console {
  border-radius: 18px; overflow: hidden;
  background: #0b1220; color: #cbd5e1;
  border: 1px solid rgba(148,163,184,.18);
  box-shadow: var(--shadow);
}
.ss-console__bar {
  display: flex; align-items: center; gap: .4rem;
  padding: .75rem 1rem; background: rgba(255,255,255,.04);
  border-bottom: 1px solid rgba(148,163,184,.12);
  font-size: .78rem; color: #94a3b8;
}
.ss-console__dot { width: 8px; height: 8px; border-radius: 50%; background: #475569; }
.ss-console__dot:nth-child(1){ background:#f87171; }
.ss-console__dot:nth-child(2){ background:#fbbf24; }
.ss-console__dot:nth-child(3){ background:#34d399; }
.ss-console__body { padding: 1.1rem 1.1rem 1.25rem; }
.ss-console__row {
  display: flex; justify-content: space-between; gap: 1rem;
  padding: .85rem 0; border-bottom: 1px solid rgba(148,163,184,.1);
  font-size: .88rem;
}
.ss-console__row:last-child { border-bottom: 0; }
.ss-console__row b { color: #fff; font-weight: 700; }
.ss-console__tag {
  display: inline-flex; padding: .15rem .5rem; border-radius: 999px;
  background: rgba(52,211,153,.15); color: #6ee7b7; font-size: .72rem; font-weight: 700;
}
.ss-console__tag.is-wait {
  background: rgba(251,191,36,.15); color: #fcd34d;
}

/* Sections */
.ss-section { padding: 4.5rem 0; }
.ss-section--alt {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.ss-section__inner { width: min(100% - 2rem, var(--max)); margin: 0 auto; }
.ss-section__head { max-width: 38rem; margin-bottom: 2.2rem; }
.ss-section__title {
  margin: 0 0 .65rem; font-size: clamp(1.5rem, 2.8vw, 2rem);
  font-weight: 800; letter-spacing: -.025em;
}
.ss-section__desc { margin: 0; color: var(--mute); }
.ss-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.ss-tile {
  padding: 1.3rem 1.2rem 1.4rem; border-radius: var(--r);
  background: var(--surface); border: 1px solid var(--line);
}
.ss-section--alt .ss-tile { background: var(--bg); }
.ss-tile__icon {
  width: 36px; height: 36px; border-radius: 10px; margin-bottom: .9rem;
  display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand); font-size: .78rem; font-weight: 800;
}
.ss-tile h3 { margin: 0 0 .45rem; font-size: 1.02rem; font-weight: 750; }
.ss-tile p { margin: 0; color: var(--mute); font-size: .93rem; }

.ss-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; counter-reset: s; }
.ss-step {
  padding: 1.25rem; border-radius: var(--r);
  background: #fff; border: 1px solid var(--line);
}
.ss-step::before {
  counter-increment: s; content: "0" counter(s);
  display: block; color: var(--brand); font-size: .75rem; font-weight: 800;
  letter-spacing: .08em; margin-bottom: .7rem;
}
.ss-step h3 { margin: 0 0 .4rem; font-size: 1rem; font-weight: 750; }
.ss-step p { margin: 0; color: var(--mute); font-size: .92rem; }

/* Trust / security */
.ss-trust-grid {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 1.25rem;
}
.ss-trust-list {
  list-style: none; margin: 0; padding: 0;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
}
.ss-trust-list li {
  display: flex; gap: .85rem; padding: 1.05rem 1.15rem;
  border-bottom: 1px solid var(--line);
}
.ss-trust-list li:last-child { border-bottom: 0; }
.ss-trust-list strong { display: block; font-size: .95rem; margin-bottom: .2rem; }
.ss-trust-list span { color: var(--mute); font-size: .88rem; }
.ss-badge {
  width: 28px; height: 28px; border-radius: 8px; flex-shrink: 0;
  display: grid; place-items: center; font-size: .7rem; font-weight: 800;
  background: var(--brand-soft); color: var(--brand);
}
.ss-company-card {
  padding: 1.35rem 1.25rem; border-radius: var(--r);
  background: linear-gradient(160deg, #0b1220, #1e3a8a);
  color: #cbd5e1; box-shadow: var(--shadow);
}
.ss-company-card h3 { margin: 0 0 .75rem; color: #fff; font-size: 1.05rem; }
.ss-company-card dl { margin: 0; }
.ss-company-card dt {
  margin: .7rem 0 .15rem; font-size: .72rem; letter-spacing: .06em;
  text-transform: uppercase; color: #94a3b8; font-weight: 700;
}
.ss-company-card dd { margin: 0; color: #e2e8f0; font-size: .92rem; font-weight: 550; }
.ss-company-card a { color: #93c5fd; }

.ss-cta {
  padding: 4rem 0;
  background:
    radial-gradient(560px 260px at 15% 0%, rgba(37,99,235,.35), transparent 60%),
    linear-gradient(135deg, #0b1220, #1e3a8a);
  color: #94a3b8;
}
.ss-cta__inner {
  width: min(100% - 2rem, var(--max)); margin: 0 auto;
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1.25rem;
}
.ss-cta h2 {
  margin: 0 0 .45rem; color: #fff; font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  font-weight: 800; letter-spacing: -.02em;
}
.ss-cta p { margin: 0; max-width: 32rem; }
.ss-cta .ss-btn--primary { background: #fff; color: #1e3a8a; box-shadow: 0 12px 28px rgba(0,0,0,.22); }
.ss-cta .ss-btn--ghost { background: transparent; border-color: rgba(255,255,255,.28); color: #fff; }

/* Footer */
.ss-footer {
  margin-top: auto; padding: 2.75rem 0 1.5rem;
  background: #020617; color: #94a3b8; font-size: .88rem;
}
.ss-footer__inner { width: min(100% - 2rem, var(--max)); margin: 0 auto; }
.ss-footer__top {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.1fr; gap: 1.5rem;
  padding-bottom: 1.75rem; border-bottom: 1px solid rgba(148,163,184,.14);
}
.ss-footer .ss-brand__name { color: #fff; }
.ss-footer .ss-brand__sub { color: #64748b; }
.ss-footer__brand > p { margin: .85rem 0 0; max-width: 24rem; line-height: 1.7; }
.ss-footer h4 {
  margin: 0 0 .75rem; color: #e2e8f0; font-size: .72rem;
  letter-spacing: .08em; text-transform: uppercase; font-weight: 750;
}
.ss-footer ul { list-style: none; margin: 0; padding: 0; }
.ss-footer li + li { margin-top: .4rem; }
.ss-footer a:hover { color: #fff; }
.ss-footer__bottom {
  padding-top: 1.1rem; display: flex; flex-wrap: wrap; gap: .45rem 1.1rem;
  justify-content: space-between; color: #64748b; font-size: .8rem;
}
.ss-footer__bottom a { color: #94a3b8; }
.ss-footer__bottom a:hover { color: #fff; }

.ss-prose {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 2rem 1.4rem 2.4rem;
}
.ss-prose h4 { margin: 1.5rem 0 .65rem; font-size: 1rem; }
.ss-prose p { margin: 0 0 .75rem; color: var(--ink-2); word-break: break-word; }

.ss-mascot-note {
  margin-top: 1.25rem; display: flex; gap: .85rem; align-items: center;
  padding: .85rem 1rem; border-radius: 12px; background: rgba(255,255,255,.06);
}
.ss-mascot-note img {
  width: 44px; height: 44px; border-radius: 50%; object-fit: cover;
  border: 1px solid rgba(255,255,255,.2);
}
.ss-mascot-note small { color: #94a3b8; font-size: .78rem; }

@media (max-width: 960px) {
  .ss-hero__inner, .ss-grid, .ss-steps, .ss-trust-grid, .ss-footer__top { grid-template-columns: 1fr; }
  .ss-hero__visual { order: -1; }
  .ss-hero { padding: 2.4rem 0 3rem; }
  .ss-brand__sub { display: none; }
}
@media (max-width: 820px) {
  .ss-menu-toggle { display: inline-flex; margin-left: auto; }
  .ss-nav, .ss-actions { display: none; }
  .ss-header.is-open { height: auto; align-items: flex-start; padding: .75rem 0 1rem; }
  .ss-header.is-open .ss-header__inner { flex-wrap: wrap; }
  .ss-header.is-open .ss-nav,
  .ss-header.is-open .ss-actions { display: flex; width: 100%; flex-direction: column; }
  .ss-header.is-open .ss-actions .ss-btn { width: 100%; }
}